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Congratulations to Bobby1 and his Brazilian Agate Cab!

Another cabochon contest coming soon!

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 on: Today at 09:22:40 AM 
Started by Mitchapalooza - Last post by kent
Covington Engineering makes hoods and pans

 on: July 22, 2021, 08:00:22 AM 
Started by Mitchapalooza - Last post by vitzitziltecpatl
The spray shield and pan look like the old Lortone set. You might find them online. I bought a set a couple of years ago.

 on: July 21, 2021, 08:13:59 PM 
Started by Mitchapalooza - Last post by Mitchapalooza
Thanks everyone,  for the thoughts and recommendations when I got it the expandable drum was on the interior so not the most convenient for swapping belts. I think I’ll likely go in the direction of Peruano’s layout. I really like the splash housing you made Kent. How much to commission one? About a month earlier I purchased a similar unit a B10. Little rougher shape, with rough modifications. Works but this most recent one I want make up real nice. Sense it’s been so well maintained. Definitely a process, but very antsy to be able to work some stone from beginning to end

 on: July 21, 2021, 05:49:14 PM 
Started by jadewatch - Last post by jadewatch
Excellent, Sirius! Just what I need.

 on: July 21, 2021, 12:31:14 PM 
Started by irockhound - Last post by victor1941
Those cabs are superb in both design and color quality. I wonder if you put a price on this site for each stone.   There should be several members that can give you accurate prices that you could use if you did want to sell.

 on: July 21, 2021, 12:23:10 PM 
Started by Mitchapalooza - Last post by peruano
After a bit of thought, I'm suspecting that the original poster does not have an expando (on the left end), because there would not be room for belt changing.  Is it really a thumper ?  Now an expando on the right end would be good but that end of the shaft probably does not have threads so set screw secured collars would have to be used on each side of the wheel (at least thats what I had to do).  I installed a hard wheel on the left end (where the buffer had been); 3 soft wheels between the bearings, and another hard wheel on the right (where an expando could be used instead).  I too used gravity feed water for a while but was not satisfied with water volume and went a small fountain pump. I still have my water supply at the level or slightly above the machine so the lift for water is minimal and volume is maximized. 

 on: July 21, 2021, 12:09:31 PM 
Started by jadewatch - Last post by R.U. Sirius
Try Gesswein. They have standard-sized wire saws in various grits.

 on: July 21, 2021, 04:05:27 AM 
Started by jadewatch - Last post by jadewatch
I'm wanting to cut unusual shapes in slabs. I'm needing diamond wire saw blades to fit a jewelers saw that have a heavier grit. I found one on ebay that shows a picture like this but they warned me that the heavier grit version is no longer available. I bought a couple anyway but they are very fine and would take forever to cut a slab. Would anyone be able to point me to a source?

 on: July 20, 2021, 07:14:30 AM 
Started by Mitchapalooza - Last post by kent
I have a similar unit. I also have an additional separate two wheel unit that I have 80 and 120 diamond grit on. That's where I begin the ruff shaping. Then off to the expando wheel on my HP unit using anything from a worn 80 grit all the way through 1000 grit. I have removed the end leather disc and replaced it with the expando wheel so I can easily replace the belts as I go through the different grits. You can always get a leather belt for the expano if you think you need it.

 I built a splash housing for the expando with a hinged lid to make it easier to replace the belts. My units water supply is gravity fed from a 3 gallon jug I refill as needed. Works OK however I'd prefer to have a little more force behind the water flow so I'd consider a pump.
 Don't discount the expano wheel.  The expando has a little "give" so its easier to get pieces that are fairer and with less facets. You also have a greater surface area to work on and less heat build up. 
Putting nova  wheels on this unit too close together for the sake having lots of different grits will hinder your hand movement to the sides of the wheels if you work free hand without dop sticks as I do. I primarily make pendants and do not dop.

My HP unit has (from left to right) a polishing buff (which is contained in its own space) a 3000 nova, 1200 nova and then the expando wheel. I have belts for the wheel from 80 grit to 1000.   
*IMG_4550.jpg (80.79 kB . 600x450 - viewed 36 times)     

 on: July 19, 2021, 07:47:04 PM 
Started by Mitchapalooza - Last post by vitzitziltecpatl
Hello again.

I replied to your initial post before I saw this one.

You can use the Nova wheels, for sure, but I really like the extra width of the expando belts.

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